geniohyoid muscle การใช้

• At the beginning of this action it is assisted by the digastric, mylohyoid and geniohyoid muscles.
• Some of the elements in " Megatherium "'s oral cavity were fused together : a rigidly articulated stylohyal and epihyal, and the apparatus lies farther anteriorly, which together with the elongated, steeply inclined mandibular symphysis, indicates a relatively shorter geniohyoid muscle and thus more limited capacity for tongue protrusion.